7147838178473 has 2 divisors, whose sum is σ = 7147838178474. Its totient is φ = 7147838178472.

The previous prime is 7147838178361. The next prime is 7147838178487. The reversal of 7147838178473 is 3748718387417.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5315570024704 + 1832268153769 = 2305552^2 + 1353613^2 .

It is a cyclic number.

It is not a de Polignac number, because 7147838178473 - 2²² = 7147833984169 is a prime.

It is a super-2 number, since 2×7147838178473² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (7147838178073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3573919089236 + 3573919089237.

It is an arithmetic number, because the mean of its divisors is an integer number (3573919089237).

Almost surely, 2^{7147838178473} is an apocalyptic number.

It is an amenable number.

7147838178473 is a deficient number, since it is larger than the sum of its proper divisors (1).

7147838178473 is an equidigital number, since it uses as much as digits as its factorization.

7147838178473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 177020928, while the sum is 68.

The spelling of 7147838178473 in words is "seven trillion, one hundred forty-seven billion, eight hundred thirty-eight million, one hundred seventy-eight thousand, four hundred seventy-three".